Question

show that (x^2-1)is a factor of

Answer 1

put x=+1 and -1 both time u will get f(Y) =0

hence proved as x2-1 =( x+1)(x-1) which gives +1 and -1 as roots

Answer 2

Hello Mate!

There is short error in question. There will be ( y^2 - 1 ) but not ( x^2 - 1 ).

Please refer to attatchment.

Have great future ahead!